Animal Slavery

[Esquilax]

Then my first point above applies: If we owned humans and rewarded them for their labor with food and shelter and medical treatment, and put cruelty laws in place to prevent abuses, it would still be slavery.

Humans value their freedom and self determination, traits that our greater mental capacity allows us to conceptualize. Meanwhile, the majority of domesticated animals seem just fine with sticking around the humans; in fact, that's an evolutionarily beneficial trait for them.